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Title: ANALYSIS OF CONSTRUCTION ACCIDENT IN SAINT PETERSBURG BASED ON CONSIDERATION OF UNDERGROUND SPACE AS A CONTAMINATED MULTICOMPONENT SYSTEM
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ANALYSIS OF CONSTRUCTION ACCIDENT IN SAINT PETERSBURG BASED ON CONSIDERATION OF UNDERGROUND SPACE AS A CONTAMINATED MULTICOMPONENT SYSTEM
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1314-2704
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English
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17
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51
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This paper analyzes the causes of groundwater breakthrough occurred during the excavation of deep pit in the central part of the city at the territory, which was being developed since the 14th century. Particular attention is paid to historical aspect of this area contamination and its impact on negative transformation of the underground space components such as soils, groundwater, gases, and microbiota. It is shown that the specificity of hydrodynamic and hydrochemical conditions has fundamental importance for assessing both the effectiveness of ground freezing (using calcium chloride brine) and the possibility of concrete solidifying in the existing acid-base and oxidation-reduction environment. Based on microbiological researches, the role of heterotrophic forms of microorganisms (primarily sulfate-reducing bacteria) in increasing of the underground space aggressiveness to building materials used for enclosing structures was established.
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conference
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17th International Multidisciplinary Scientific GeoConference SGEM 2017
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17th International Multidisciplinary Scientific GeoConference SGEM 2017, 29 June - 5 July, 2017
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Proceedings Paper
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STEF92 Technology
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International Multidisciplinary Scientific GeoConference-SGEM
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Bulgarian Acad Sci; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Slovak Acad Sci; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; World Acad Sci; European Acad Sci, Arts & Letters; Ac
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67-74
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29 June - 5 July, 2017
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website
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cdrom
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3893
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deep excavation; construction accident; soil freezing; concrete; contamination.
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